Oil stove



Oct; 26,1926. 1,604,354

' R. HOFFMAN O IL STOVE Filed August 7, 1922 L C) w w m INVENTDR RUDULPH HUFFMA ATTYE.

Patented Get. 26, 1926.

, UNITED STATEFT 9 F E Q E a an r it. thi

RUBOL'PLFE HOFFIWIAN, OF KANKAKEE, ILLINOIS, ASS IGNOR TO SEARS, ROEBUCK AND (30., OF CHICAGO, ILLINOIS, A CORPORATION OF NEW YORK.

OIL STOVE.

Application filed Au usta, 1922. Serial No. 580,116.

The invention relates to oil stoves and has for its general aim the production of a stove which may be equipped with a relatively large number of burners arranged in a novel, compact and advantageous manner.

Oil stoves as now manufactured and sold are provided with but a single row of burners arranged from end to end of the stove in longitudinal alignment near the front edge of the stove. This arrangement is necessitated by reason of the fact that the burners must be readily accessible for purposes of lighting, extinguishing, cleaning, etc. Numerous attempts have, to my knowl edge, been made to provide an oil stove in which a rear row of burners is provided, including the mounting of all of the burners upon a movable tray or base. All prior attempts have, I believe, proven unsuccessful My invention contemplates the provision in an oil stove of a rear row of burners in addition to the front row, the rear burners being independently movable to a forward position between adjacent front burners. To permit of such forward and rearward movement of the rear burners, I have provided a novel means of extreme simplicity and yet wholly effective for flexibly connecting the rear burners with a source of oil supply.

In the accompanying drawings I have shown but one embodiment of the invention, but it is contemplated that various changes in the form, construction and arrangement of the parts may be made by those skilled in the art without departing from the spirit and scope of the invention as expressed in the appended claims.

Figure 1 is a perspective view of an oil stove embodying my invention. Fig. 2 is a fragmentary horizontal sectional view through the lower portion of the stove and showing the relative arrangement of the burners. Fig. 3 is a fragmentary vertical sectional view through the lower portion of the stove. Fig. at is a fragmentary enlarger. detail view of a section of the flexible conductor. Fig. 5 is a detached detail view of the burner support or carrier.

The stove comprises a lower portion or base 4: mounted upon supporting legs 5 and having a top 6 with a cabinet shelf 7. 8 designates an oil reservoir mounted at one side of the stove beneatlr an extension leaf or shelf 9 and supplying oil to the burners 10 through the medium of a pipe 11.

l have herein shown a stove having five burners, three of which are stationarily mounted upon the pipe 11 and are arranged longitudinally of the stove near the front edge thereof. The remaining two burners normally occupy rearward positions and are mounted for forward movement to a position between the adjacent burners of the front row, the latter being spaced apart a distance sufficient to accommodate the rear burners.

The means for thus mounting the rear burners may be of any suitable character. Herein I have shown by way of example a pair of rods 12 mounted in spaced parallel relation and extending from front to rear of the stove. The rear ends are mounted in the back plate 13;,and the forward ends in a' forward cross bar 14. A carrier plate 15 is provided at opposite side edges with enlarged portions 15 which are bored to receive slidably the rods 12, and between these enlargements the burner is seated over apertures 16 provided in the plate to permit of the flow of air to the burner. A draw rod 17 is pivotally connected at 18 to the forward edge of the carrier plate 15, and at its forward end rests upon the bar 14- at the front side of the stove. Preferably the rod is provided with a notch 19 therein adapted to engage with the upper edge of the bar 14 so as to enable the operator readily to position the rear burner with respect to the proper grid in the top plate 6.

The means which I employ for connecting the rear burners with the source of oil supply comprises a flexible metallic tube 20 one end of which communicates with the supply pipe 11, being connected thereto in any suitable or preferred manner, and the other end of which is connected to the burner. This tube is preferably made from a seamless metallic tube rendered flexible by the provision of relatively movable sections 2O connected together to form a helix. The preferred manner of making this flexible conductor is to shape the periphery of a plain metallic tube by spinning therein a helical groove, and then collapsing the tubeso as to bring the walls of the sections relatively close together. I have found in actual practice, and by conducting rigid tests, that. such a tube while sufficiently flexible to permit of the movement of the burner is capable of withstanding long continued and hard usage.

For the purpose of preventing a sharp bend in the tube adjacent its connection with the burner, I preferably provide a horn-like member or linger 21 protruding rearwardly from the plate and curved in a direction of curvature of the tube so as to constitute a guide having the eli ect of distributing the bending strain over a relatively large section of the tube.

The construction and arrangement which I have provided in the production of an oil stove having a larger number of burners has been found in actual practice to be of a thoroughly practical character. Since the rear burners are mounted for independent movement they are capable of convenient operation into a forward position without disturbing the other burners, and their move ment may be accomplished with substantial ease and rapidity.

In some instances it may be desirable to provide in an oil stove, burners which are capable of movement for purposes other than cleaning, lighting, etc. 1* or example, when an extraordinarily intense heat is necessary or desired, the heat from two or more burners may be concentrated upon a single cooking utensil by the simple expedient of moving one or more of the burners, mounted as herein set forth.

I claim as my invention:

1. an oil stove having a plurality of stationarily mounted burners, a plurality of burners mounted for movement horizontally relative to the other burners, a fixed source of oil supply, and means connecting the movable burners to said fixed source of oil supply to permit of such movement.

2. An oil stove having a burner communieating with a source of oil supply, a pair of spaced rods extending from front to rear of the stove, and a carrier plate for the burner mounted upon said rods, said plate being constructed to permit of the flow of air to the burner.

3. An oil stove having, in combination with a. source of oil supply, a burner mounted for movement from one operative posit-ion to another, a flexible metallic tube communicating with the source of oil supply and with the burner, and means mounted adjacent the end of the tube which is connected with the burner for distributing the bending strain over a substantial length of the tube.

4;. An oil stove having, in combination, a base, a plurality of burners located forwardly in the frame and stationarily mounted therein, a burner movable from a position rearwardly in the frame to a position between said forward burners so as to be acccssible from the front of the base, and means for supplying oil to said burners including a stationary supply pipe communicating with the stationary burners and a flexible supply pipe communicating with said stationary supply pipe and also with said movable burner.

5. An oil stove comprising, in combination, a stove top having a plurality of holes therein, said stove top having a working edge, and one of said holes being remote from said working edge, a fuel supply, a burner under said remote hole movable horizontally toward said working edge, and fuel conveying means from thecburner to the fuel supply adapted to permit said motion, and other burners beneath the remaining holes of said stove top connected to said oil supply.

In testimony whereof, I have hereunto affixed my signature.

RUDOLPH HOFFMAN. 

